Cisco 400-007 Exam With Confidence Using Practice Dumps

B (Use only secure protocols): Management and administrative access to Internet edge routers must use secure protocols (SSH, SNMPv3, HTTPS) to prevent interception or unauthorized access.

E (Restrict administrative access): Limiting administrative access via interface ACLs and clear login banners ensures that only authorized personnel can access the system, satisfying compliance and security requirements.

Other options explained:

A: Filtering infrastructure IP space is good hygiene but not directly related to compliance.

C: Logging is valuable for operations and incident response but not a compliance control by itself.

D: EBGP advertisements relate to routing policy, not compliance regulation.

C (Lack of visibility and tracking): In cloud-native environments, organizations often struggle with monitoring and tracking workloads across dynamic, distributed, and multi-tenant architectures. Traditional visibility tools may not fully cover cloud-native assets like containers, serverless functions, or microservices, making it harder to detect threats and enforce policies.

D (Increased attack surface): Cloud-native architectures introduce many additional components—APIs, microservices, third-party integrations, and distributed data—which all expand the organization's overall attack surface. More entry points for attackers create additional security challenges compared to traditional on-prem environments.

Other options explained:

A: User roles can be managed with proper IAM systems.

B: Polymorphism refers to code behavior in programming, not a core security challenge in cloud-native design.

E: Credential validation is part of basic access control but not a top cloud-native challenge compared to visibility and attack surface expansion.

SD-WAN integrates multiple underlay transport options (Internet, MPLS, LTE) while delivering advanced features like DPI (Deep Packet Inspection), SLA monitoring, QoS, encryption, scalability, and centralized management.

It provides policy-based path selection, cost optimization, and rapid deployment.

SD-WAN is widely regarded as a modern WAN design solution fully aligned with CCDE v3.1 design principles for cost-effective and flexible WAN architectures.

Why other options are incorrect:

B: Internet alone cannot deliver consistent SLA or QoS guarantees.

C: Hybrid MPLS + Internet may work but is more complex and costly; SD-WAN natively supports such hybrid models.

D: MPLS offers SLAs but lacks flexibility, DPI, and cost-effectiveness compared to SD-WAN.

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